$84+ Cheap flights from Boise (BOI) to Colorado
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — DEN
Jul 2 — Jul 91
Round-trip
1 adult, Economy
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Find cheap flights from Boise to Colorado with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Boise to ColoradoExplore the most affordable flight options available from Boise to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 2, 2026.
Explore the most affordable flight options available from Boise to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 2, 2026.
This Frontier deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/301:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Tue 8/410:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 6/2![Frontier logo]()
$173
This Frontier deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/211:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Tue 7/2810:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 5/31![Frontier logo]()
$174
This Frontier deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:59 pm
BOI
- DEN
Nonstop2h 01m
Frontier
Thu 9/179:55 am
DEN
- BOI
Nonstop2h 09m
Frontier
Deal found 6/1![Frontier logo]()
$184
This Expedia deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/161:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Tue 7/2110:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 6/1![Frontier logo]()
$198
This Frontier deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/21:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Tue 8/1110:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 6/1![Frontier logo]()
$201
This Frontier deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/91:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Tue 7/1410:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 5/31![Frontier logo]()
$204
This Frontier deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:04 pm
BOI
- DEN
Nonstop2h 05m
Frontier
Sun 9/610:08 am
DEN
- BOI
Nonstop2h 01m
Frontier
Deal found 5/30![Frontier logo]()
$211
This Expedia deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/301:25 pm
BOI
- DEN
Nonstop2h 23m
Multiple Airlines
Tue 7/76:00 am
DEN
- BOI
1 stop7h 46m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$213
This Expedia deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/211:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Thu 7/2310:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 6/1![Frontier logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:24 pm
BOI
- DEN
Nonstop2h 06m
Multiple Airlines
Wed 8/126:02 am
DEN
- BOI
1 stop6h 45m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:39 pm
BOI
- COS
1 stop3h 49m
Delta
Thu 8/206:16 pm
COS
- BOI
1 stop5h 43m
Delta
Deal found 5/30![Delta logo]()
$228
This Southwest deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
BOI
- COS
1 stop6h 35m
Southwest
Thu 8/205:30 am
COS
- BOI
1 stop4h 45m
Southwest
Deal found 5/30![Southwest logo]()
$286
Best flights from Boise to ColoradoDiscover carefully curated flight deals from Boise to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 2, 2026.
Discover carefully curated flight deals from Boise to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 2, 2026.
This Southwest deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1512:55 pm
BOI
- DEN
Nonstop1h 50m
Southwest
Mon 8/178:40 pm
DEN
- BOI
Nonstop1h 55m
Southwest
Deal found 5/29![Southwest logo]()
$231
This Alaska Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/258:00 pm
BOI
- DEN
1 stop14h 33m
Alaska Airlines
Wed 7/299:08 pm
DEN
- BOI
1 stop12h 32m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$260
This United Airlines deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:40 pm
BOI
- DEN
Nonstop2h 01m
United Airlines
Sun 9/1311:35 am
DEN
- BOI
Nonstop2h 00m
United Airlines
Deal found 5/29![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:39 pm
BOI
- COS
1 stop3h 49m
Delta
Mon 8/176:16 pm
COS
- BOI
1 stop5h 43m
Delta
Deal found 5/28![Delta logo]()
$310
This Southwest deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
BOI
- COS
1 stop6h 35m
Southwest
Thu 8/204:20 pm
COS
- BOI
2 stops7h 15m
Southwest
Deal found 5/30![Southwest logo]()
$291
This Delta deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:42 pm
BOI
- DEN
1 stop3h 58m
Delta
Sun 8/27:09 pm
DEN
- BOI
1 stop5h 04m
Delta
Deal found 5/29![Delta logo]()
$327
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/241:05 pm
BOI
- DEN
2 stops7h 25m
Southwest
Fri 6/269:10 pm
DEN
- BOI
1 stop4h 35m
Southwest
Deal found 6/1![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/255:46 pm
BOI
- DEN
Nonstop1h 59m
United Airlines
Wed 7/293:55 pm
DEN
- BOI
Nonstop2h 01m
United Airlines
Deal found 5/29![United Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:42 pm
BOI
- COS
1 stop4h 00m
Delta
Tue 6/236:20 pm
COS
- BOI
1 stop5h 49m
Delta
Deal found 5/29![Delta logo]()
$338
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2512:20 pm
BOI
- DEN
1 stop8h 10m
Southwest
Mon 6/297:00 pm
DEN
- BOI
1 stop5h 20m
Southwest
Deal found 6/1![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:00 am
BOI
- DEN
1 stop3h 18m
Delta
Mon 6/227:00 pm
DEN
- BOI
1 stop5h 09m
Delta
Deal found 5/28![Delta logo]()
$358
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:25 pm
BOI
- DEN
Nonstop1h 55m
Southwest
Wed 6/246:00 am
DEN
- BOI
1 stop4h 45m
Southwest
Deal found 6/1![Southwest logo]()
$348
This Southwest deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:55 pm
BOI
- COS
1 stop7h 30m
Southwest
Tue 7/216:00 am
COS
- BOI
2 stops6h 30m
Southwest
Deal found 5/30![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/81:05 pm
BOI
- COS
2 stops8h 40m
Southwest
Mon 7/137:55 pm
COS
- BOI
1 stop5h 20m
Southwest
Deal found 5/31![Southwest logo]()
$362
This United Airlines deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/132:40 pm
BOI
- MTJ
1 stop5h 30m
United Airlines
Wed 6/173:25 pm
MTJ
- BOI
1 stop6h 10m
United Airlines
Deal found 5/29![United Airlines logo]()
$545
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:55 am
BOI
- COS
1 stop6h 10m
Southwest
Mon 10/126:55 am
COS
- BOI
1 stop12h 05m
Southwest
Deal found 6/1![Southwest logo]()
$362
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:55 pm
BOI
- DEN
1 stop5h 10m
Southwest
Mon 6/229:10 pm
DEN
- BOI
1 stop4h 35m
Southwest
Deal found 6/1![Southwest logo]()
$374
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:40 pm
BOI
- DEN
1 stop5h 00m
Southwest
Mon 7/67:45 am
DEN
- BOI
Nonstop2h 00m
Southwest
Deal found 6/1![Southwest logo]()
$375
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/203:25 pm
BOI
- COS
2 stops7h 20m
Southwest
Fri 7/244:55 pm
COS
- BOI
2 stops8h 20m
Southwest
Deal found 6/1![Southwest logo]()
$378
This United Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:46 pm
BOI
- MTJ
1 stop26h 24m
United Airlines
Sun 7/127:25 am
MTJ
- BOI
1 stop10h 31m
United Airlines
Deal found 5/28![United Airlines logo]()
$757
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:55 pm
BOI
- COS
1 stop7h 30m
Southwest
Sun 7/125:35 am
COS
- BOI
2 stops7h 20m
Southwest
Deal found 6/1![Southwest logo]()
$397
This Southwest deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2610:25 am
BOI
- MTJ
1 stop9h 05m
Southwest
Mon 7/68:00 am
MTJ
- BOI
2 stops11h 05m
Southwest
Deal found 5/31![Southwest logo]()
$852
This Southwest deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/158:45 am
BOI
- MTJ
2 stops10h 45m
Southwest
Fri 6/198:00 am
MTJ
- BOI
2 stops7h 45m
Southwest
Deal found 5/31![Southwest logo]()
$860
Last-minute flights from Boise to ColoradoDiscover last-minute flight deals from Boise to Colorado. Data last updated June 2, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Colorado. Data last updated June 2, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Sun 7/510:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 5/29![Frontier logo]()
$221
This Expedia deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/301:25 pm
BOI
- DEN
Nonstop2h 23m
Multiple Airlines
Tue 7/76:00 am
DEN
- BOI
1 stop7h 46m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/71:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Thu 7/910:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 5/28![Frontier logo]()
$219
This Frontier deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/91:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Tue 7/1410:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 5/31![Frontier logo]()
$204
This Expedia deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/161:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Tue 7/2110:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 6/1![Frontier logo]()
$198
This Southwest deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:55 pm
BOI
- COS
1 stop7h 30m
Southwest
Tue 7/217:55 pm
COS
- BOI
1 stop4h 40m
Southwest
Deal found 5/30![Southwest logo]()
$300
This Southwest deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:25 am
BOI
- COS
1 stop5h 05m
Southwest
Thu 7/236:10 am
COS
- BOI
1 stop5h 15m
Southwest
Deal found 5/31![Southwest logo]()
$317
This Frontier deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/211:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Tue 7/2810:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 5/31![Frontier logo]()
$174
This Expedia deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/211:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Thu 7/2310:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 6/1![Frontier logo]()
$215
This Frontier deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/231:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Tue 7/2810:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 5/28![Frontier logo]()
$211
This Frontier deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/231:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Sun 7/2610:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 5/30![Frontier logo]()
$218
This Frontier deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/301:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Tue 8/410:29 am
DEN
- BOI
Nonstop2h 00m
Frontier
Deal found 6/2![Frontier logo]()
$173
One-way flights from Boise to ColoradoSearch for one-way flight options from Boise to Colorado. Find affordable one-way fares based on user searches. Data last updated June 2, 2026.
Search for one-way flight options from Boise to Colorado. Find affordable one-way fares based on user searches. Data last updated June 2, 2026.
This Frontier deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 6/2![Frontier logo]()
$84
This Priceline deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/301:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 6/2![Frontier logo]()
$89
This Frontier deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/281:25 pm
BOI
- DEN
Nonstop2h 23m
Frontier
Deal found 6/2![Frontier logo]()
$94
This Delta deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:00 am
BOI
- DEN
1 stop6h 04m
Delta
Deal found 5/29![Delta logo]()
$95
This Southwest deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:40 pm
BOI
- DEN
Nonstop1h 55m
Southwest
Deal found 5/29![Southwest logo]()
$96
This Frontier deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:04 pm
BOI
- DEN
Nonstop2h 05m
Frontier
Deal found 5/29![Frontier logo]()
$97
This Frontier deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/261:24 pm
BOI
- DEN
Nonstop2h 06m
Frontier
Deal found 6/2![Frontier logo]()
$109
This United Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:46 pm
BOI
- COS
1 stop6h 13m
United Airlines
Deal found 5/28![United Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/85:46 pm
BOI
- COS
1 stop4h 20m
United Airlines
Deal found 6/1![United Airlines logo]()
$169
This Southwest deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/133:25 pm
BOI
- COS
2 stops9h 55m
Southwest
Deal found 5/28![Southwest logo]()
$170
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:30 am
BOI
- MTJ
1 stop6h 15m
United Airlines
Deal found 6/1![United Airlines logo]()
$176
This Southwest deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:25 am
BOI
- COS
1 stop5h 05m
Southwest
Deal found 5/28![Southwest logo]()
$194
Find flight deals from Boise to Colorado
Keep the following information in mind while searching for Boise to Colorado flight deals. Data was last updated June 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $173 (Frontier) |
One-way from | $84 (Frontier) |
Popular in | April |
Cheapest in | October |
Average price | $293 |
Good round-trip deal | $381 or less |
Good one-way deal | $185 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boise to Colorado that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 2, 2026.
Use the filters below to find and compare flights from Boise to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BoiseDenver
BOI - DEN
BOIDEN
Boise Air Term. Gowen Fld
Sat 8/15
12:55 pm-2:45 pm
Nonstop1h 50m
Denver Intl
Mon 8/17
8:40 pm-10:35 pm
Nonstop1h 55m
$231
BoiseDenver
BOI - DEN
BOIDEN
Boise Air Term. Gowen Fld
Sat 7/25
8:00 pm-10:33 am
1 stop14h 33m
Denver Intl
Wed 7/29
9:08 pm-9:40 am
1 stop12h 32m
$260
BoiseColorado Springs
BOI - COS
BOICOS
Boise Air Term. Gowen Fld
Tue 8/18
6:00 am-12:35 pm
1 stop6h 35m
Colorado Springs
Thu 8/20
4:20 pm-11:35 pm
2 stops7h 15m
$291
BoiseDenver
BOI - DEN
BOIDEN
Boise Air Term. Gowen Fld
Fri 9/11
5:40 pm-7:41 pm
Nonstop2h 01m
Denver Intl
Sun 9/13
11:35 am-1:35 pm
Nonstop2h 00m
$307
BoiseColorado Springs
BOI - COS
BOICOS
Boise Air Term. Gowen Fld
Fri 8/14
6:39 pm-10:28 pm
1 stop3h 49m
Colorado Springs
Mon 8/17
6:16 pm-11:59 pm
1 stop5h 43m
$310
BoiseDenver
BOI - DEN
BOIDEN
Boise Air Term. Gowen Fld
Wed 6/24
1:05 pm-8:30 pm
2 stops7h 25m
Denver Intl
Fri 6/26
9:10 pm-1:45 am
1 stop4h 35m
$315
BoiseDenver
BOI - DEN
BOIDEN
Boise Air Term. Gowen Fld
Fri 7/31
6:42 pm-10:40 pm
1 stop3h 58m
Denver Intl
Sun 8/2
7:09 pm-12:13 am
1 stop5h 04m
$327
BoiseDenver
BOI - DEN
BOIDEN
Boise Air Term. Gowen Fld
Thu 6/25
12:20 pm-8:30 pm
1 stop8h 10m
Denver Intl
Mon 6/29
7:00 pm-12:20 am
1 stop5h 20m
$337
BoiseColorado Springs
BOI - COS
BOICOS
Boise Air Term. Gowen Fld
Tue 6/16
6:42 pm-10:42 pm
1 stop4h 00m
Colorado Springs
Tue 6/23
6:20 pm-12:09 am
1 stop5h 49m
$338
BoiseDenver
BOI - DEN
BOIDEN
Boise Air Term. Gowen Fld
Fri 6/19
4:25 pm-6:20 pm
Nonstop1h 55m
Denver Intl
Wed 6/24
6:00 am-10:45 am
1 stop4h 45m
$348
Showing 1-10 of 44 resultsSorted by cheapest first
Best time to book a flight from Boise to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Boise with our price prediction graph.
BOI-DEN
BOI-COS
BOI-MTJ
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Boise to Colorado
BOI-USCO
BOI-DEN
BOI-COS
BOI-MTJ
What is the cheapest month to book a flight from Boise to Colorado?
Currently, January is the cheapest month in which you can book a flight from Boise to Colorado (average of $26). Flying from Boise to Colorado in June is currently the most expensive (average of $107). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BOI to CO?
Find hourly flight availability from Boise to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 2, 2026.
It’s optimal to fly from Boise to Colorado in the evening. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight in the morning.
Weekly flight availability from Boise to Colorado
Explore weekly flight availability from Boise to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 2, 2026.
The most flights from BOI to USCO are scheduled on a Monday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).
How much does it cost to fly round-trip from Boise to Colorado?
How far ahead should I book a flight from Boise to Colorado?
Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boise to Colorado. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated June 2, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Boise to Colorado have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Boise to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
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Boise and Colorado flights
Browse other Boise and Colorado flight options. Last updated on June 2, 2026.
Popular flight searches
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Boise to Colorado flights
Consider these flights traveling from Boise to Colorado.
Top 5 airlines flying from Boise to Colorado
Discover the top 5 airlines that operate flights from Boise to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$55 | Average$134 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$104 | Average$276 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$154 | Average$342 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$176 | Average$398 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$189 | Average$426 | FlexibilityNo cancel fee | On-time63% |